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Diffstat (limited to 'drivers/scsi/arcmsr/arcmsr_hba.c')
-rw-r--r--drivers/scsi/arcmsr/arcmsr_hba.c138
1 files changed, 57 insertions, 81 deletions
diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
index da7b9887ec48..f980600f78a8 100644
--- a/drivers/scsi/arcmsr/arcmsr_hba.c
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c
@@ -75,8 +75,10 @@ MODULE_AUTHOR("Nick Cheng <support@areca.com.tw>");
MODULE_DESCRIPTION("ARECA (ARC11xx/12xx/16xx/1880) SATA/SAS RAID Host Bus Adapter");
MODULE_LICENSE("Dual BSD/GPL");
MODULE_VERSION(ARCMSR_DRIVER_VERSION);
-static int sleeptime = 10;
-static int retrycount = 12;
+
+#define ARCMSR_SLEEPTIME 10
+#define ARCMSR_RETRYCOUNT 12
+
wait_queue_head_t wait_q;
static int arcmsr_iop_message_xfer(struct AdapterControlBlock *acb,
struct scsi_cmnd *cmd);
@@ -171,24 +173,6 @@ static struct pci_driver arcmsr_pci_driver = {
****************************************************************************
****************************************************************************
*/
-int arcmsr_sleep_for_bus_reset(struct scsi_cmnd *cmd)
-{
- struct Scsi_Host *shost = NULL;
- int i, isleep;
- shost = cmd->device->host;
- isleep = sleeptime / 10;
- if (isleep > 0) {
- for (i = 0; i < isleep; i++) {
- msleep(10000);
- }
- }
-
- isleep = sleeptime % 10;
- if (isleep > 0) {
- msleep(isleep*1000);
- }
- return 0;
-}
static void arcmsr_free_hbb_mu(struct AdapterControlBlock *acb)
{
@@ -323,66 +307,64 @@ static void arcmsr_define_adapter_type(struct AdapterControlBlock *acb)
default: acb->adapter_type = ACB_ADAPTER_TYPE_A;
}
-}
+}
static uint8_t arcmsr_hba_wait_msgint_ready(struct AdapterControlBlock *acb)
{
struct MessageUnit_A __iomem *reg = acb->pmuA;
- uint32_t Index;
- uint8_t Retries = 0x00;
- do {
- for (Index = 0; Index < 100; Index++) {
- if (readl(&reg->outbound_intstatus) &
- ARCMSR_MU_OUTBOUND_MESSAGE0_INT) {
- writel(ARCMSR_MU_OUTBOUND_MESSAGE0_INT,
- &reg->outbound_intstatus);
- return true;
- }
- msleep(10);
- }/*max 1 seconds*/
+ int i;
+
+ for (i = 0; i < 2000; i++) {
+ if (readl(&reg->outbound_intstatus) &
+ ARCMSR_MU_OUTBOUND_MESSAGE0_INT) {
+ writel(ARCMSR_MU_OUTBOUND_MESSAGE0_INT,
+ &reg->outbound_intstatus);
+ return true;
+ }
+ msleep(10);
+ } /* max 20 seconds */
- } while (Retries++ < 20);/*max 20 sec*/
return false;
}
static uint8_t arcmsr_hbb_wait_msgint_ready(struct AdapterControlBlock *acb)
{
struct MessageUnit_B *reg = acb->pmuB;
- uint32_t Index;
- uint8_t Retries = 0x00;
- do {
- for (Index = 0; Index < 100; Index++) {
- if (readl(reg->iop2drv_doorbell)
- & ARCMSR_IOP2DRV_MESSAGE_CMD_DONE) {
- writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN
- , reg->iop2drv_doorbell);
- writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT, reg->drv2iop_doorbell);
- return true;
- }
- msleep(10);
- }/*max 1 seconds*/
+ int i;
+
+ for (i = 0; i < 2000; i++) {
+ if (readl(reg->iop2drv_doorbell)
+ & ARCMSR_IOP2DRV_MESSAGE_CMD_DONE) {
+ writel(ARCMSR_MESSAGE_INT_CLEAR_PATTERN,
+ reg->iop2drv_doorbell);
+ writel(ARCMSR_DRV2IOP_END_OF_INTERRUPT,
+ reg->drv2iop_doorbell);
+ return true;
+ }
+ msleep(10);
+ } /* max 20 seconds */
- } while (Retries++ < 20);/*max 20 sec*/
return false;
}
static uint8_t arcmsr_hbc_wait_msgint_ready(struct AdapterControlBlock *pACB)
{
struct MessageUnit_C *phbcmu = (struct MessageUnit_C *)pACB->pmuC;
- unsigned char Retries = 0x00;
- uint32_t Index;
- do {
- for (Index = 0; Index < 100; Index++) {
- if (readl(&phbcmu->outbound_doorbell) & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
- writel(ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR, &phbcmu->outbound_doorbell_clear);/*clear interrupt*/
- return true;
- }
- /* one us delay */
- msleep(10);
- } /*max 1 seconds*/
- } while (Retries++ < 20); /*max 20 sec*/
+ int i;
+
+ for (i = 0; i < 2000; i++) {
+ if (readl(&phbcmu->outbound_doorbell)
+ & ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE) {
+ writel(ARCMSR_HBCMU_IOP2DRV_MESSAGE_CMD_DONE_DOORBELL_CLEAR,
+ &phbcmu->outbound_doorbell_clear); /*clear interrupt*/
+ return true;
+ }
+ msleep(10);
+ } /* max 20 seconds */
+
return false;
}
+
static void arcmsr_flush_hba_cache(struct AdapterControlBlock *acb)
{
struct MessageUnit_A __iomem *reg = acb->pmuA;
@@ -459,10 +441,11 @@ static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb)
struct CommandControlBlock *ccb_tmp;
int i = 0, j = 0;
dma_addr_t cdb_phyaddr;
- unsigned long roundup_ccbsize = 0, offset;
+ unsigned long roundup_ccbsize;
unsigned long max_xfer_len;
unsigned long max_sg_entrys;
uint32_t firm_config_version;
+
for (i = 0; i < ARCMSR_MAX_TARGETID; i++)
for (j = 0; j < ARCMSR_MAX_TARGETLUN; j++)
acb->devstate[i][j] = ARECA_RAID_GONE;
@@ -472,23 +455,20 @@ static int arcmsr_alloc_ccb_pool(struct AdapterControlBlock *acb)
firm_config_version = acb->firm_cfg_version;
if((firm_config_version & 0xFF) >= 3){
max_xfer_len = (ARCMSR_CDB_SG_PAGE_LENGTH << ((firm_config_version >> 8) & 0xFF)) * 1024;/* max 4M byte */
- max_sg_entrys = (max_xfer_len/4096);
+ max_sg_entrys = (max_xfer_len/4096);
}
acb->host->max_sectors = max_xfer_len/512;
acb->host->sg_tablesize = max_sg_entrys;
roundup_ccbsize = roundup(sizeof(struct CommandControlBlock) + (max_sg_entrys - 1) * sizeof(struct SG64ENTRY), 32);
- acb->uncache_size = roundup_ccbsize * ARCMSR_MAX_FREECCB_NUM + 32;
+ acb->uncache_size = roundup_ccbsize * ARCMSR_MAX_FREECCB_NUM;
dma_coherent = dma_alloc_coherent(&pdev->dev, acb->uncache_size, &dma_coherent_handle, GFP_KERNEL);
if(!dma_coherent){
- printk(KERN_NOTICE "arcmsr%d: dma_alloc_coherent got error \n", acb->host->host_no);
+ printk(KERN_NOTICE "arcmsr%d: dma_alloc_coherent got error\n", acb->host->host_no);
return -ENOMEM;
}
acb->dma_coherent = dma_coherent;
acb->dma_coherent_handle = dma_coherent_handle;
memset(dma_coherent, 0, acb->uncache_size);
- offset = roundup((unsigned long)dma_coherent, 32) - (unsigned long)dma_coherent;
- dma_coherent_handle = dma_coherent_handle + offset;
- dma_coherent = (struct CommandControlBlock *)dma_coherent + offset;
ccb_tmp = dma_coherent;
acb->vir2phy_offset = (unsigned long)dma_coherent - (unsigned long)dma_coherent_handle;
for(i = 0; i < ARCMSR_MAX_FREECCB_NUM; i++){
@@ -2602,12 +2582,8 @@ static int arcmsr_iop_confirm(struct AdapterControlBlock *acb)
if (cdb_phyaddr_hi32 != 0) {
struct MessageUnit_C *reg = (struct MessageUnit_C *)acb->pmuC;
- if (cdb_phyaddr_hi32 != 0) {
- unsigned char Retries = 0x00;
- do {
- printk(KERN_NOTICE "arcmsr%d: cdb_phyaddr_hi32=0x%x \n", acb->adapter_index, cdb_phyaddr_hi32);
- } while (Retries++ < 100);
- }
+ printk(KERN_NOTICE "arcmsr%d: cdb_phyaddr_hi32=0x%x\n",
+ acb->adapter_index, cdb_phyaddr_hi32);
writel(ARCMSR_SIGNATURE_SET_CONFIG, &reg->msgcode_rwbuffer[0]);
writel(cdb_phyaddr_hi32, &reg->msgcode_rwbuffer[1]);
writel(ARCMSR_INBOUND_MESG0_SET_CONFIG, &reg->inbound_msgaddr0);
@@ -2955,12 +2931,12 @@ static int arcmsr_bus_reset(struct scsi_cmnd *cmd)
arcmsr_hardware_reset(acb);
acb->acb_flags &= ~ACB_F_IOP_INITED;
sleep_again:
- arcmsr_sleep_for_bus_reset(cmd);
+ ssleep(ARCMSR_SLEEPTIME);
if ((readl(&reg->outbound_msgaddr1) & ARCMSR_OUTBOUND_MESG1_FIRMWARE_OK) == 0) {
- printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, retry=%d \n", acb->host->host_no, retry_count);
- if (retry_count > retrycount) {
+ printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, retry=%d\n", acb->host->host_no, retry_count);
+ if (retry_count > ARCMSR_RETRYCOUNT) {
acb->fw_flag = FW_DEADLOCK;
- printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, RETRY TERMINATED!! \n", acb->host->host_no);
+ printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, RETRY TERMINATED!!\n", acb->host->host_no);
return FAILED;
}
retry_count++;
@@ -3025,12 +3001,12 @@ sleep_again:
arcmsr_hardware_reset(acb);
acb->acb_flags &= ~ACB_F_IOP_INITED;
sleep:
- arcmsr_sleep_for_bus_reset(cmd);
+ ssleep(ARCMSR_SLEEPTIME);
if ((readl(&reg->host_diagnostic) & 0x04) != 0) {
- printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, retry=%d \n", acb->host->host_no, retry_count);
- if (retry_count > retrycount) {
+ printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, retry=%d\n", acb->host->host_no, retry_count);
+ if (retry_count > ARCMSR_RETRYCOUNT) {
acb->fw_flag = FW_DEADLOCK;
- printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, RETRY TERMINATED!! \n", acb->host->host_no);
+ printk(KERN_ERR "arcmsr%d: waiting for hw bus reset return, RETRY TERMINATED!!\n", acb->host->host_no);
return FAILED;
}
retry_count++;
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